It can be used in PVC, plastic, copper, and even older pipes without corroding the joints or damaging the interior of the pipe. To help us all stay on top of our drains, CLR Clear Pipes and Drains is a monthly cleaner to help keep drains running smoothly. This pipe cleaner works to dissolve the build-up in your pipes before clogs happen. However, since this is a monthly treatment, it's not designed to tackle an already clogged drain. Additionally, it has to be put down the drain once a month to help keep them clean.

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